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Oval|Natural|GIA

0.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 1528479257

Certificate GIA 1528479257

Diamond specifications and retailer prices

From $880 NZD
$496 USD
As of October 31, 2026
Save $1,623 NZD (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,503 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1528479257. Listed at 10 retailers as of October 31, 2026, with prices from $880 to $2,503, a $1,623 spread on the same certified stone. MOH London lists it at $2,503. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle29.6°
Pavilion angle40.7°
OriginNatural
Grading LabGIA
CertificateGIA 1528479257
Dimensions6.82 × 4.58 × 2.69 mm
L/W Ratio1.49
Culet sizeNone
Top View
6.82 mm4.58 mm0.51 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1528479257
Side View
Table 61.0%Crown 29.6°Girdle: Sli. ThickPavilion 40.7°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,503 NZD|Low: $687 NZD|High: $2,567 NZD|Avg: $1,261 NZD|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$880 NZD
Retailer 6$907 NZD
Retailer 8$976 NZD
Retailer 9$999 NZD
Retailer 4$1,132 NZD
Retailer 7$1,167 NZD
Retailer 3$1,333 NZD
Retailer 5$1,380 NZD
Retailer 2$1,457 NZD
MOH London$2,503 NZD

43 data points across 10 retailers

10 retailers$880 NZD to $2,503 NZD

A
Cheapest Retailer
-
$880 NZD
$496 USD
B+
Retailer 2
-
$907 NZD
$511 USD
View
Final sale: no returns
B+
Retailer 3
-
$976 NZD
$550 USD
View
B+
Retailer 4
-
$999 NZD
HK$4,400 HKD
View
B+
Retailer 5
-
$1,132 NZD
$638 USD
View
B+
Retailer 6
-
$1,167 NZD
$658 USD
View
B
Retailer 7
-
$1,333 NZD
£591 GBP
View
B
Retailer 8
-
$1,380 NZD
$778 USD
View
B
Retailer 9
-
$1,457 NZD
€782 EUR
View
Most Expensive
C
MOH London
224760F52 · Nov 1
$2,503 NZD
£1,111 GBP
View
9 more retailers have this diamond
Prices start from $880 NZDSave up to $1,623 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Oval
$880 NZD